Learning2 - I am not running anything from this source, but I think most of us have had this problem with different orals over the years.
First, are you sure your pill cutter is up to the job? One time when I had this problem, a pharmacist friend of mine told me to quit being a cheap ass and by a good quality pill cutter. I did and it made a big difference. Maybe your pill cutter (or whatever your using) is not sharp enough?
Second, what does your dosing protocol look like? Is it possible to take 1 tab EOD vs 0.5 tab ED, or 1 tab E4D vs 0.5 tab EOD, etc?